Jujubee101 Jujubee101
  • 12-04-2017
  • Health
contestada

How often can someone breath fiberglass and glass dust before it becomes very harmful to the lungs? For how long?

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sophiawilson sophiawilson
  • 12-04-2017
For 30 minutes tops! Hope this helps jujubee

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Аноним Аноним
  • 12-04-2017
for 30 min. bye!!!!!!!
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